Continuous Calls from Vodafone to reactivate a disconnected number

Location/place: Mumbai

Name of company/service: Vodafone

I had placed a request to disconnect a vodafone number (9833885648). I was then offered a good plan on it based on which i re-activated the number. However, I have not received the sim card but received the 1st bill after re-activation. I have again placed a request to deactivate the same number. I am being pestered by calls from vodafone on my landline to reactivate it again. It is causing a lot of inconvenience to my old parents. Please take the necessary action to stop this.